Photo-, thermal and natural ageing of ethylene–propylene–diene monomer (EPDM) rubber used in automotive applications. Influence of carbon black, crosslinking and stabilizing agents

X-Ray Photoelectron Spectroscopy for Characterization of Engineered Elastomer Surfaces

“…had an induction period of approximately 5 days. These results agree with previous works in which the induction period during thermal oxidation of EPDM was determined as 130 h at 80 ºC [40] and 150 h at 150 ºC [7]. Variations of the induction period in different works can be due to differences in the EPDM composition, more specifically, in the carbon black and antioxidants content.…”

“…This effect was similar to the evolution of the oxygen content registered in the wide energy range scan (Table 3). Similar behaviour was also observed by [39] and [7]. When comparing the samples aged during 100 days at 80 ºC and 120 ºC the portion of carbon-oxygen functional groups was lower at higher temperature, though both samples had similar surface contents of oxygen.…”

“…In general, it is employed in applications which demand a material with good mechanical properties and with a retained elastic nature [7]. World production of EPDM is estimated to be 41% of all elastomers [8][9][10][11].…”

A Study on the Aging Degradation of Ethylene-Propylene-Diene Monomer (Epdm) Under Loca Condition

“…Previous research has mainly focused on the synthesis and its mechanical properties [5], on the influences of ozone, UV light, ultrasonic irradiation, and ionizing radiation [6][7][8], on the thermo-oxidation [9][10][11][12], and on the effect of oxygen uptake under isothermal and isobaric conditions [13]. In the meantime, there has been little research on the performance of EPDM in relation to the equipment qualification and the nuclear safety, especially under a LOCA environment.…”

Photo-oxidation of EPDM/layered double hydroxides composites: Influence of layered hydroxides and stabilizers

“…Structure of layered double hydroxide exchange capacity, LDHs have found many potential applications, including those in pharmaceuticals, catalyst supports, inorganic fillers and acid killers [14] to prevent the degradation of polymeric materials by effectively scavenging any acid generated during processing as well as during application. Ethylene propylene diene monomer (EPDM) rubber is widely used due to its good mechanical properties, very low unsaturation and associated resistance to ageing and ozone deterioration [15]. This is due to its saturated hydrocarbon backbone with the presence of double bonds in side chains.…”